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Lifting things with compressed air Remove the bladder from a soccer ball or basket ball and place it on a table. Pile some books on the bladder and then blow into it.
Measuring atmospheric pressure with a bicycle pump A bicycle pump with the washer reversed as represents can be used to calculate atmospheric pres- sure. The piston can be made
Explain the Kidney as an Endocrine Gland The kidney produces substances that can be described as hormones. Hormones are the chemicals produced by glands in the body and circula
Q.What are the two forms of oxygen found in the atmosphere? The two forms of oxygen found in the atmosphere are: (i) Diatomic molecular form with chemical formula O 2 . (i
INTRODUCTION : In this activity, your Counsellor will perform some experiments illustrating the principles behind some of the disposal procedures. These principles are given below
VERIFICATION OF STOCK ITEMS : Now you know that a stock register is the key for the verification of all the items purchased from time to time. Let us now perform the second activi
A hair hygrometer This device will enable you to read the relative humidity directly without the use of tables. Procure a few human hairs about 30 cm long. Free them from gr
The Origin of Agriculture and Civilisation : There is no historical evidence to tell us exactly how agriculture arose. We can only imagine what may have happened. Cultivatio
INTRODUCTION : Gas, Electricity and water are integral parts of any science laboratory. You would have realised from personal experience (if any) and in the course of your study o
Define the sensory speech area of the Cerebrum The sensory speech area is situated in the lower part of the parietal lobe and extends into temporal lobe as indicated in the Fig
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